Base | Representation |
---|---|
bin | 1111101001010… |
… | …01000001010110 |
3 | 100010221200110120 |
4 | 13310221001112 |
5 | 232044140042 |
6 | 21004532410 |
7 | 3152343654 |
oct | 764510126 |
9 | 303850416 |
10 | 131240022 |
11 | 68099631 |
12 | 37b51106 |
13 | 21261024 |
14 | 13603dd4 |
15 | b7c5dec |
hex | 7d29056 |
131240022 has 32 divisors (see below), whose sum is σ = 273715200. Its totient is φ = 41898528.
The previous prime is 131240003. The next prime is 131240041. The reversal of 131240022 is 220042131.
It is an interprime number because it is at equal distance from previous prime (131240003) and next prime (131240041).
It is a junction number, because it is equal to n+sod(n) for n = 131239983 and 131240010.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19129 + ... + 25067.
It is an arithmetic number, because the mean of its divisors is an integer number (8553600).
Almost surely, 2131240022 is an apocalyptic number.
131240022 is an abundant number, since it is smaller than the sum of its proper divisors (142475178).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131240022 is a wasteful number, since it uses less digits than its factorization.
131240022 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6100.
The product of its (nonzero) digits is 96, while the sum is 15.
The square root of 131240022 is about 11456.0037534910. The cubic root of 131240022 is about 508.1852998552.
Adding to 131240022 its reverse (220042131), we get a palindrome (351282153).
The spelling of 131240022 in words is "one hundred thirty-one million, two hundred forty thousand, twenty-two".
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